solve by the substitution method:

Question

8m+n=47

m-5n=52

thank you
having trouble completing please show all work so I can learn better

Answer 1

from the 2nd ---> m = 52 + 5n

into the 1st:
8(52+5n) + n = 47
for that I got n = -9

put that back into
m = 52 + 5n
= 52 - 45
= 7

Answer 2

3x=52+5y
2x=-48-7y